I think you'll find that others eg inhabitants of the Sudetenland from the time will tell you their WW2 started in 1938. Being a Brit, I was brought up on the '39-'45 timescale but that obviously neglects the before and after that sears the national consciousness of many other countries.
"I know some people on slashdot think that WWII started Dec 7, 1941"
I've been to the war museum in NOLA (it bills itself as the National Museum I recall) and it doesn't represent WW2 in quite the same way as war museums I have visited in UK, Germany, Netherlands, Belgium, France. However the museum in New Orleans does star Tom Hanks - the other places I've visited can't compete with that.
My birthday is Dec 7 (and I am aware it is the day that Pearl Harbour was attacked.)